Its ok. It is all okay!
It is good that the prozac helps you! Remember that it is still helping :) like you said you are on the lowest dosage. If you are having breakthrough symptoms on the lowest dosage and have now been on it for 4 months, your brain probably just regulated to the medication. Talk to who prescribes the prozac. They should be able to increase it no problemm :)
The trouble with panic and anxiety attacks is that once you are physiologically aroused, it becomes a vicious cycle. Feeling anxious can cause a fast heart beat and nervous shakiness but also a fast heartbeat and nearvous shakiness can cause panic and anxiety. It is important to calm yourself and break this cycle. When you feel that way, do your best to take deepp breaths, sit down, relax, insert a coping skill or do something simple like enjoy a cup of tea or hot chocolate. Relaxation techniques do wonders for panic and anxiety.
Remember, panic is not logical. But you can do your best to de-escalate yourself as soon as possible. The more worked up you get, the longer the symptoms will last.
A little stress or anxiety is ok, we are humans and feel emotion. Try not to worry about the small stuff, or acknowledge that you are worried but that it is ok, it is normal
If you aren't having any other medical symptoms there is no reason to worry about dying :) tell yourself that...over and over if you have to :)
The important thing is that you are overall getting better. Being 16, yes, your body can go through a lot of changes and your period can make you more emotional which in turn can make you more panicky. Prepare mentally for your time of the month. Take care of yourself extra well the week before you are going to menstruate.
Even if you still have an episode of panic on the prozac, that is ok too. Medication helps, but it is just one part of treatmment. The other part of treatment is with your thoughts and actions. That is why relaxation techniques help too.
Talking to a friend or a counselor or anyone you trust might help you deal with your fear and help alleviate ongoing anxiety.
Just breathe....slowly. maybe start meditating. Sit down and do your makeup. Our heart rate is usually slower when we are sitting than when we are standing.